Transforming Business with Generative AI.
Founded by a Toshiba R&D veteran with all 12 AWS certs. AI services, contract dev, and advisory — bringing generative AI to the front lines.
Having these problems?
Our generative AI specialists solve them with you
Want AI, but where to start?
You've tried ChatGPT. But how to integrate it? We design the first step together.
Is that dev quote fair?
Can't judge AI costs without expertise. Our advisors review and ensure a fair deal.
Manual work burning people out
Copy-paste, reconciliation, data entry on repeat. AI automates so people focus on decisions.
Here's how we solve it
Ready-to-Use AI Tools
Talk to the Experts
Leach by the numbers
40+
Companies supported (including individuals)
From enterprises to startups, we've helped businesses across industries adopt AI
Award Winner
YCombinator c0mpiled — Top US Hackathon
160 participants — from University of Tokyo CS and Minerva students to exited founders. Just 4 hours to ideate, build, and present. Won a technical award with an international team formed on the spot
9 Years
At Toshiba R&D — enterprise expertise, hands-on
Joint projects with Google and McKinsey. Youngest person seconded to the executive office. Understands both the tech and the frontline
All 12 AWS Certs
All 12 certs in ~1 month (typically takes a year)
Covers everything from infrastructure to applications. Clients say "every question gets an answer"
Takuya Tominaga
CEO, Leach Inc.
Generative AI Dramatically Transforms Business. I'm Convinced of It.
After leaving, I visited companies everywhere. People using rulers on monitors to reconcile data. Copy-pasting by hand, over and over. Upstairs, flashy AI discussions. Downstairs, humans exhausted. Generative AI can change this. I was instinctively convinced.
"We want AI but don't know where to start." If that sounds like you, please reach out. We'll look at your operations together and find the best path forward.
Education: Born 1989. Master's from NAIST (Nara Institute of Science and Technology).
University: Interned at Akatsuki, Speee, and eXmotion — all three later went public (IPO). Won Speee Advanced Internship.
Toshiba — 9 Years: Covered HDD firmware (low-level) to AWS data analytics and web apps (high-level). Built an iOS chat app in Objective-C in 2013. Seconded to the executive office of subsidiary Toshiba Tec as the youngest ever. Worked on joint projects with Google and McKinsey.
Awards: DICOMO 2014 Best Presentation Award (1st out of 293) & Best Paper Award (double win) / IPSJ DPSWS 2014 Best Poster Award / 2nd place in University of Tokyo's 'Toshiba AI Engineer Training' / Toshiba Software Technology Center Outstanding Performance Award / Supercomputing Contest 2006 Finalist
Certifications & Patents: All 12 AWS certifications (achieved in ~1 month — unprecedented speed globally) / LPIC Level 3 / Patent holder (Patent No. 7086873)
Founding: Founded Leach, Inc. in November 2024. Won the Technical Award at YCombinator's hackathon "c0mpiled" in January 2026.
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